Set of 3 tools for sound post (soul post) setting and adjustment for double bass. 【Inspection Mirror】A mirror to insert through the sound hole and view the interior. The mirror has a 2-stage ball joint for angle adjustment. No scratches on the mirror surface. There is some discoloration on the back. The joints move smoothly. 【Clamp】A tool that clamps and secures the sound post with the hook at the tip. There is some wear and tear, but the hook, spring, etc. function without any problems. 【Hammer】A hammer for tapping the sound post to adjust its position. Made of brass. The handle is fully covered with rubber to protect the sound hole from damage. The rubber is not deteriorated and is in good condition. 〇 Purchased in the US about 25 years ago. Manufacturer unknown (the clamp is engraved with "RIMAC Made in U.S.A"). I rarely replaced or adjusted the sound post, so I only used it a few times. 〇 Everything in the photos is included. There is no box or instruction manual. 〇 You can't find sets like this even if you search on Amazon, etc. It seems that buying an S-shaped setter or clamp separately would cost around 8,000 to 10,000 yen each due to the weak yen. 〇 I will sell it to someone who will take good care of it. Thank you for looking.